Key-guard.



PATENTED NOV. 7, 1905.

W. R. BRENIMAN.

KEY GUARD.

APPLICATION nun JULY 9, 1904.

2 SHEETS-SHEET 1.

ANDREW. a. mum c0w PHOYO-LITNOORIPMRS wnsmnoran, n :4

PATENTED NOV. 7, 1905.

W. R. BRENIMAN.

KEY GUARD.

APPLICATION FILED JULY 9, 1904.

W5. BPGIW/WQ/a 2 SHEETS-SHEET 2.

ANDREW a. GRAHAM co. PMOIO-LITNOGRAPME UNITED STATES.- PATENT OFFICE.

WILLIAM R. BRENIMAN, OF BROOKLYN, IOWA.

KEY-GUARD.

Specification of Letters Patent.

Patented Nov. 7, 1905.

Application filed. July 9, 1904. Serial No. 215,842.

To all whom it may concern:

. ture which may be readily placed in position and may be disposed attimes to prevent turning of the key within the lock and to prevent thekey from being dislodged from the keygole by a person at the oppositeside of the oor.

Other objects and advantages will be apparent from the followingdescription, and it will be understood that modifications of thespecific construction shown may be made and any suitable materials maybe used without departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is an elevation of a door provided with the present invention.Fig. 2 is a section on line 2 2 of Fig. 1. Fig. 3 is a view similar toFig. 2, showing a modification. Fig. 4 is a view similar to Fig. 1,showing a further modification. Fig. 5 is a section on line 5 5 of Fig.4.

Referring now to the drawings, there is shown a door 5 having a keyhole6, and disposed longitudinally at opposite sides of thekeyhole areparallel angle irons 7, having alining slots 8 in theiroutwardly-extending portions 9, which extend downwardly to points justbelow the keyhole.

A key-engaging member 10 is provided, which consists of a strip of metalbent to form spaced portions 11 and 12, arranged to receive thefinger-piece of a key therebetween, and outwardly-extending portions 13and 14, which lie at right angles to the portions 11 and 12, theportions 13 and 14 being bent at right angles adjacent to their freeends to lie in planes parallel to those occupied by the portions 11 and12 and again at an angle outwardly to form wings 15, which are engagedin the slots 8. The member 10 is thus arranged for vertical slidingmovement and may be moved into and out of position to engage its spacedportions 11 and 12 at opposite sides of the finger-piece 16 of a key 17,which is engaged in the keyhole 6, and when in such position restsagainst the lower ends of the slots and prevents rotation of the key inthe keyhole, also preventing dislodgment of the key therefrom.

In Fig. 3 there is shown a construction in which the escutcheon-plate 18of the lock is provided with longitudinal T-shaped slots 19, in whichare engaged T-shaped lugs 20, carried by a key-engaging member 21, whichis thus arranged for sliding movement to engage its slot 22 with thefinger-piece of the key. I e

In Figs. 4 and 5 there is shown a further modification in whichoutwardly-extending plates 23 are secured to the door at opposite sidesof the keyhole and have coinciding grooves 24 upon their inner faces,these grooves opening through the upper ends of the plates, and withthese grooves are engaged the wings 25 of a key-engaging member 26,which is similar to the member 10 of the preferred form.

In the first and last forms the guard may be readily placed in positionand removed, it being secured to the door by means of screws, as shown,and by reason of the fact that in the last-described form the grooves 24open through the tops of the plates 23 the'key-engaging member may beremoved from the grooves when desired.

It will of course be understood that, if desired, the angle-irons 7 ofthe preferred form may have their slots 8 continued through their upperends to permit of disengagement of the keyengaging member therefrom, asin the second modification.

What is claimed is 1. A key-guard comprising plates arranged forattachment to a door at opposite sides of the keyhole, said plateshaving outwardlyextending portions provided with longitudinal slots, anda member including angular portions disposed with said angular portionsin the slots, the extremities of said angular portions being bent toextend over the faces of the outwardly-extending portions, said memberalso having a recess therein adapted for engagement with thefinger-piece of a key.

2. The combination with a door, having a keyhole, of angular platessecured to the door at opposite sides of the keyhole, said plates havingoutwardly extending portions provided with channels opening through theends thereof, and a key-engaging member including spaced legs havingtheir extremities turned at an angle and engaged in the channels, saidmember including a connecting portion extending between the legs, saidcon=.

key-engaging member including spaced legs and a connection portion, thefree ends of I the, San legs being sliaauy' engaged in the channels,said connecting'portion being provided with a convolution adapted forengagement of the finger-piece of a key.

In testimony whereofI aflix my signature in presence of two witnesses.

WILLIAM R. BRENIMAN.

Witnesses:

KENNETH MOARA, T. E. RODERICK-v

